Analysis of the Effect of Process Parameters on Part Wall Thickness Variation in Conventional Metal Spinning of Cr-Mn Austenitic Stainless Steels

Sugar, Peter F.; Šugárová, Jana; Petrovič, Ján

doi:10.5545/sv-jme.2015.2901

Cited by 14 publications

(4 citation statements)

References 20 publications

(29 reference statements)

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“…Percentage wall thickness variation from the original blank thickness, springback in the radial direction, surface roughness, and roundness error have been evaluated for produced cups, Table 2. Reported thickness variation values go in agreement with those obtained by Šugár et al [19]. Springback values are in the accepted range reported by Essa and Hartley [20].…”

Section: Test Runs Of the Retrofitted Systemsupporting

confidence: 91%

A computer numerical control (CNC) multi-pass spinning solution to a center lathe retrofit

2018

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This paper suggests a typical scheme for substantially low cost machine upgrading with regard to research and manufacturing activities through the integration of mechanical, electronic and software technologies. Computer numerical controlled (CNC) multi-pass spinning process is considered state-of-the-art nowadays in critical applications such as aerospace and automotive industries but equipment cost is still an issue. For the sake of novelty, accuracy and repeatability of spun products, a conventional lathe machine has been converted into CNC spin-forming machine by retrofitting to generate automatic tool paths in two axes for multi-pass spinning. Actuators and sensors necessary to provide controlled motion of mechanical elements such as mandrel, roller, and holder are selected to cope with the requirements of this incremental metal forming process. A CNC controller is integrated to the system with software to generate the tool path and G-code required for producing cups using the retrofitted machine. Rotational speeds together with longitudinal and transverse axes movements are calibrated. Backlash in power screws is evaluated and considered in the displacement control. Different tool paths including involute path can be generated using the developed control system. The machine has been used successfully to produce cups with high processing speeds and superior surface quality to that reported in the available literature. Based on experimental investigation under lubricated condition, the geometrical and surface quality with productivity was improved and an optimum exists at 0.6 mm/rev. feed ratio, 200 RPM mandrel rotational speed, and seven spin-forming passes.

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Section: Test Runs Of the Retrofitted Systemsupporting

confidence: 91%

A computer numerical control (CNC) multi-pass spinning solution to a center lathe retrofit

2018

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“…Hence, the application of concave tool path has a negative effect on the height of the spun part from the technological point of view, since in the previous research [32] was observed that concave tpp causes the most massive thickness reduction in the wall zone of the spun cups. This conclusion is also confirmed by research of Šugár [33]. Overall it can be concluded, that linear tool path profile along with the application of tool feed of 0.8 mm leads to the optimal values of the spun part wall heights.…”

Section: Fig 3 Spun Part Wall Heights For Convex Tool Path Profilesupporting

confidence: 68%

Study on Wall Heights and Surface Roughness of Spun Cups Produced of Metal Blanks by Multipass CNC Spinning Technology

Frnčík

Šugárová

Sugar

et al. 2019

MSF

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This research paper deals with the influence analysis of the conventional metal spinning parameters (tool path profile tpp, tool feed f and mandrel rotational speed n) on the wall heights and the surface roughness Ra of the cylindrical-shaped spun parts measured in various directions with respect to the material rolling direction. Experimental research was carried out according to the 3-level full factorial design of experiment (DoE). Experimental study was also statistically analyzed by the ANOVA method. It was observed that tool path profile is a process parameter which has the most significant impact on the spun cup height and the surface finish, as well.

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“…[9] sıvama parametrelerinin kalınlığa olan etkileri incelemek için, 1 mm kalınlığında Al 1060 malzemeyi konik sıvamışlardır. İş parçası cidar kalınlığının, mandrel devir hızı ve ilerleme hızı arttıkça azaldığını [10,11] deneysel ve sayısal olarak göstermişlerdir.…”

Section: Gi̇ri̇ş (Introduction)unclassified

“…Sin α =1xsin 60° = 0,86 mm(10) Yapılan hesaba göre analiz sürecinde iş parçasının plastik deformasyon sonrası kalınlığı 0,86 mm'dir. Bu değer akma sınırının başladığı en büyük noktayı ifade etmektedir.…”

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Aisi 304 Paslanmaz Çeli̇ği̇n Sivama Parametreleri̇ni̇n Sonlu Elemanlar Yöntemi̇yle Beli̇rlenmesi̇

Yaman¹,

Özcan²,

Tekıner³

2018

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Analysis of the Effect of Process Parameters on Part Wall Thickness Variation in Conventional Metal Spinning of Cr-Mn Austenitic Stainless Steels

Abstract: Metal spinning is one of a number of flexible sheet forming processes which is a cost effective option for the production of parts with a very

Cited by 14 publications

References 20 publications

A computer numerical control (CNC) multi-pass spinning solution to a center lathe retrofit

A computer numerical control (CNC) multi-pass spinning solution to a center lathe retrofit

Study on Wall Heights and Surface Roughness of Spun Cups Produced of Metal Blanks by Multipass CNC Spinning Technology

Aisi 304 Paslanmaz Çeli̇ği̇n Sivama Parametreleri̇ni̇n Sonlu Elemanlar Yöntemi̇yle Beli̇rlenmesi̇

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